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| author | Yann E. MORIN <yann.morin.1998@free.fr> | 2016-10-23 17:28:51 +0200 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-10-25 22:51:54 +0200 |
| commit | 56cf5612937f14bcc7f2f339b6fb28ea3d635a67 (patch) | |
| tree | d613e4c71feedafb037a84b172d233c35bc8466b | |
| parent | 0292ec5f34d209f2571a1d2c3286b265e44f8bff (diff) | |
pkg-infra: allow dumping reverse dependencies of a package
Finding the packages that select another one in a specific configuration
is not very trivial:
- when optional, the dependency is not expressed in Kconfig
- looking at the .mk files is not very nice.
Introduce a way to dump reverse dependencies of packages, i.e. the list
of packages that directly depend on that package. Like for direct
dependencies, we limit the list to the first-order reverse dependencies.
Document it in the main help; use the opportunity to also document
foo-show-depends.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | package/pkg-generic.mk | 7 |
2 files changed, 9 insertions, 0 deletions
@@ -974,6 +974,8 @@ help: @echo ' <pkg>-depends - Build <pkg>'\''s dependencies' @echo ' <pkg>-configure - Build <pkg> up to the configure step' @echo ' <pkg>-build - Build <pkg> up to the build step' + @echo ' <pkg>-show-depends - List packages on which <pkg> depends' + @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency' @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies' @echo ' <pkg>-dirclean - Remove <pkg> build directory' @echo ' <pkg>-reconfigure - Restart the build from the configure step' diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk index e726ac5ef..81bb82c2c 100644 --- a/package/pkg-generic.mk +++ b/package/pkg-generic.mk @@ -698,6 +698,9 @@ $(1)-show-version: $(1)-show-depends: @echo $$($(2)_FINAL_ALL_DEPENDENCIES) +$(1)-show-rdepends: + @echo $$($(2)_RDEPENDENCIES) + $(1)-graph-depends: graph-depends-requirements @$$(INSTALL) -d $$(GRAPHS_DIR) @cd "$$(CONFIG_DIR)"; \ @@ -854,6 +857,10 @@ $$(foreach pkg,$$($(2)_PROVIDES),\ $$(eval $$(call virt-provides-single,$$(pkg),$$(call UPPERCASE,$$(pkg)),$(1))$$(sep))) endif +# Register package as a reverse-dependencies of all its dependencies +$$(eval $$(foreach p,$$($(2)_FINAL_ALL_DEPENDENCIES),\ + $$(call UPPERCASE,$$(p))_RDEPENDENCIES += $(1)$$(sep))) + # Ensure unified variable name conventions between all packages Some # of the variables are used by more than one infrastructure; so, # rather than duplicating the checks in each infrastructure, we check |